DRAG DROP
You administer three Microsoft SQL Server 2012 servers named ServerA, ServerB, and ServerC. ServerA is
the acting principal and ServerB is the mirror.
You need to add ServerC as a witness to the existing mirroring session between ServerA and ServerB. You
need to achieve this goal without delaying synchronization.
Which three actions should you perform in sequence?(To answer, move the appropriate actions from the list of
actions to the answer area and arrange them in the correct order.)
Select and Place:
Answer: 
Explanation:
Why is it necessary to do two transaction log backups?
the first backup is the full backup. the second backup should only restore the changes which were made in the meantime the restoration on server 02 was made. so you need to get the transactions in the period.